Hi I am 25 and try to take care of my skin as best as I can. About 6-8 months ago I noticed that I had developed a darker brownish skin pigmentation above my upper lip on my otherwise fair skin. I was told by an estitician that considering the fact that I applied sunscreen daily the culprit might be my birth control pills.I was wondering if anyone has had a similar melasma problem what has been the most effective/ least expensive treatment? The info is MUCH appreciated! Thank you so much.